Cosmicdust - Monthly celestial events. Includes a graphic calendar.

Castle Point Astronomy Club - Amateur astronomy club in South-East Essex.

Astronomical Society of Edinburgh - Runs the City Observatory at the Calton Hill (10 minutes walk from Princes Street).

Mark Allison's Astro Site - Offers information and observations from an amateur Deep Sky astronomer based in Salford.

Macclesfield Astronomical Society - Working to make astronomy accessible to the general public, they meet twice a month for a workshop and a main lecture

Oxford Astrophysics -

UKSpace - Includes company profiles and supporting resources related to U.K. space companies.

Mullard Space Science Laboratory -

Physics and Astronomy -

Royal Astronomical Society - Publishes journals, awards medals, fellowships and prizes. Houses one of the most comprehensive libraries and archives in the world.

Campaign for Dark Skies (CfDS) - Find out more about the CfDS, what is being done in the U.K., and what you can do to help save our precious skies from light pollution.

Mars Society UK - Working to further the goal of the exploration and settlement of the Red Planet.

Association for Radio Astronomy in Education - Encourages radio astronomy and radio telescope projects in educational environments.

Cambridge X-Ray Astronomy Group - Research of the group focuses on observational studies of active galaxies, clusters of galaxies, elliptical galaxies, and the X-ray background.